Some have said they're play-acting for the sake of their new reality TV show, Crackin’ On - a claim which has persisted after the pair were accused of fighting at the National Television Awards.

Heat Magazine ran a report suggesting they are “faking” their romance for the sake of the show.

A source told the publication: “They’re still having rows and are very on and off.

“But, at the moment, they can’t end things because they have to do this TV show together.

“They have to put on a united front.”

A spokesman for Chris said: "Chris and Olivia are surprised and saddened by reports questioning their relationship. They are very much in love and are looking forward to their exciting future together."